A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model

In this paper, a compact dual-band diplexer is proposed using two interdigital filters. The proposed microstrip diplexer correctly works at 2.1 GHz and 5.1 GHz. In the proposed diplexer, two fifth-order bandpass interdigital filters are designed to pass the desired frequency bands. Applied interdigi...

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Main Authors: Muhammad Akmal Chaudhary, Saeed Roshani, Salman Shabani
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/14/4/849
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author Muhammad Akmal Chaudhary
Saeed Roshani
Salman Shabani
author_facet Muhammad Akmal Chaudhary
Saeed Roshani
Salman Shabani
author_sort Muhammad Akmal Chaudhary
collection DOAJ
description In this paper, a compact dual-band diplexer is proposed using two interdigital filters. The proposed microstrip diplexer correctly works at 2.1 GHz and 5.1 GHz. In the proposed diplexer, two fifth-order bandpass interdigital filters are designed to pass the desired frequency bands. Applied interdigital filters with simple structures pass the 2.1 GHz and 5.1 GHz frequencies and suppress other frequency bands with high attenuation levels. The dimensions of the interdigital filter are obtained using the artificial neural network (ANN) model, constructed from the EM-simulation data. The desired filter and diplexer parameters, such as operating frequency, bandwidth, and insertion loss, can be obtained using the proposed ANN model. The insertion loss parameter of the proposed diplexer is 0.4 dB, and more than 40 dB output port isolation is obtained (for both operating frequencies). The main circuit has the small size of 28.5 mm × 23 mm (0.32 λg × 0.26 λg). The proposed diplexer, with the achieved desired parameters, is a good candidate for UHF/SHF applications.
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spelling doaj.art-cc4955d2a58a43b6b2c3f20851f694552023-11-17T20:30:17ZengMDPI AGMicromachines2072-666X2023-04-0114484910.3390/mi14040849A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network ModelMuhammad Akmal Chaudhary0Saeed Roshani1Salman Shabani2Department of Electrical and Computer Engineering, College of Engineering and Information Technology, Ajman University, Ajman 346, United Arab EmiratesDepartment of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, IranDepartment of Electrical Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, IranIn this paper, a compact dual-band diplexer is proposed using two interdigital filters. The proposed microstrip diplexer correctly works at 2.1 GHz and 5.1 GHz. In the proposed diplexer, two fifth-order bandpass interdigital filters are designed to pass the desired frequency bands. Applied interdigital filters with simple structures pass the 2.1 GHz and 5.1 GHz frequencies and suppress other frequency bands with high attenuation levels. The dimensions of the interdigital filter are obtained using the artificial neural network (ANN) model, constructed from the EM-simulation data. The desired filter and diplexer parameters, such as operating frequency, bandwidth, and insertion loss, can be obtained using the proposed ANN model. The insertion loss parameter of the proposed diplexer is 0.4 dB, and more than 40 dB output port isolation is obtained (for both operating frequencies). The main circuit has the small size of 28.5 mm × 23 mm (0.32 λg × 0.26 λg). The proposed diplexer, with the achieved desired parameters, is a good candidate for UHF/SHF applications.https://www.mdpi.com/2072-666X/14/4/849bandpass filterdiplexerdual bandresonatorinterdigital filtersinsertion loss
spellingShingle Muhammad Akmal Chaudhary
Saeed Roshani
Salman Shabani
A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
Micromachines
bandpass filter
diplexer
dual band
resonator
interdigital filters
insertion loss
title A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
title_full A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
title_fullStr A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
title_full_unstemmed A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
title_short A Miniaturized Dual-Band Diplexer Design with High Port Isolation for UHF/SHF Applications Using a Neural Network Model
title_sort miniaturized dual band diplexer design with high port isolation for uhf shf applications using a neural network model
topic bandpass filter
diplexer
dual band
resonator
interdigital filters
insertion loss
url https://www.mdpi.com/2072-666X/14/4/849
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